Comment by neilv
When I tried CalyxOS years ago, it gave me the impression of generic Android with all possible "privacy" apps recommended.
I replaced it with GrapheneOS, which at the time seemed seemed to be developed much more seriously. (I haven't looked at recent CalyxOS.)
Choosing GrapheneOS determines the hardware: recent-generation Google Pixel.
For a more open platform, maybe take the Phosh stuff (or whatever it is now) that Purism developed for the Librem 5, and run it with PostmarketOS Linux with whatever is the current most mainline-kernel-and-drivers supported device. Or maybe the KDE Plasma mobile stuff has come along further.
I've been trying to get a good Linux handheld so long (including buying dozens of various devices, trying many approaches, doing many crazy builds, etc.), that I finally gave up. GrapheneOS works as a daily driver without violating me itself.
Google pixel with grapheneOS is where I ended up as well. I think there was more interest in privacy focused OSes for a while, but it died out. The community has coalesced around google pixels and other phones/manufacturers have hardened against 3rd party OSs.
Linux phones are just not there, and getting non-smart phone would be better than a linux phone for reliability.